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Herbal Tea For Your Health

Why drink tea? Most of us just drink it to warm and fill us up with as little effort and calories as possible. Yet there are many medicinal reasons to drink tea, too. I’ll begin my tea articles with a look at the health benefits of the standard black and green teas. In an article week, I’ll look at specific illnesses and the various other herbal teas that target them.

Black And Green Tea For Your Health

Tea is an important beverage. Herbal teas are even healthier than coffee, which I wrote about in a previous article. Whether for weight loss, an energy boost, improved mood and sleep or even to fight a winter cold virus, tea does the trick.

Teas are the most commonly consumed beverage in the world, second only to water.

Black And Green Tea

Black and green teas are both made from the shrub Camellia sinensis. The Chinese teas, oolong tea and white tea, also are made from this plant, but with preparation processes that significantly differ.

Black tea, the most oxidized type of tea, has a strong flavor that it maintains for many years. Because of the perceived value of black tea, it has even been compressed into bricks and used as a monetary currency in Mongolia, Tibet and Siberia.

Tea is renowned for its health benefits, and its effects on the body have been examined ever since Camellia sinensis was first used about 4,700 years ago in China. All the data on black and green tea show important health benefits.

Healthy Black Tea

In 2001,i researchers at Boston University found that among patients with cardiovascular disease, short- and long-term black tea consumption reversed vasomotor (blood vessel action) dysfunction. These scientists concluded that this effect on vessels was a major reason why drinking tea decreases heart attack rates.

A 2009 study reported in the Journal of Hypertensionii showed that black tea consumption improves blood flow and decreases arterial stiffness in healthy subjects. We also know that regular ingestion of black tea over six months results in lower systolic and diastolic blood pressure, according to a 2012 report in Food & Function.iii These are very important protective cardiovascular effects. Interestingly, a 2006 German study found that adding milk blocks the heart protective effects of tea.iv

Adding to the heart-healthy effects of black tea is its cholesterol benefits. Theaflavin-3-gallate is an advantageous compound found in black tea that is thought to improve cholesterol metabolism, according to a 2008 report in the Journal of Agricultural and Food Chemistry.v

Vasodilation

Black and green teas contain L-theanine, known to promote nitric oxide (NO) production in the cells of the inner lining of arteries (endothelial cells). Nitric oxide is a well-known vasodilator that increases blood flow for improved skeletal muscle strength and also better cardiovascular health.vi L-theanine is used medicinally to reduce mental and physical stress and is one of the best remedies for adrenal fatigue. It is also known to improve mental clarity and boost mood in combination with caffeine.

Caffeine has a natural stimulant effect that can be beneficial for many health needs but can be overused and lead to a physical dependency. It is interesting to note that coffee has the highest caffeine content.

Weight control may be another benefit of tea consumption. A 2010 report in the European Journal of Nutritionvii that looked at body weight and tea consumption among 6,472 study participants revealed a clear correlation: Drinking hot tea was inversely associated with obesity and directly associated with beneficial biomarkers of cardiovascular disease risk like increased HDL cholesterol and decreased C-reactive protein in men and women. In 2011, Japanese researchers reported nearly identical findings.viii They found that black tea consumption significantly reduced the risk of obesity and that it also could be used effectively to help prevent metabolic syndrome (prediabetes).

In the June 2009 Journal of Food Science, Chinese researchers found that green tea, oolong tea and black tea helped regulate blood sugar. They discovered that black tea was the most effective of these at slowing blood sugar absorption and fighting free radicals. ix

Green Tea For Health

Green tea shares the heart healthy and diabetes-reducing effects of black tea. Green tea is also known to have high concentrations of phytochemicals like polyphenolic compounds (most predominately epigallocatechin-3-gallate, or EGCG).

Moreover, researchers have found that green tea has cancer-reducing properties.

The association between high green tea consumption and low cancer rates in Asian countries is more than just coincidence. The chemicals in green tea have been shown to attach to and destroy cancer cells in animal studies. Studies show that these chemicals may stop cancer from forming in the skin, lung, mouth, esophagus, stomach, small intestine, colon, liver, pancreas and mammary glands.xi Other studies have shown that green tea’s actions prevent the spread of breastxii and prostatexiii cancers in humans.

My favorite teas to drink are green tea and fruit-flavored teas. These are low in calories because I sweeten them with stevia, not table sugar.

In my next article, I’ll talk about the many other health benefits from various herbal teas. I’m looking forward to exploring that topic.

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Dr. Michael Cutler

is a graduate of Brigham Young University, Tulane Medical School and Natividad Medical Center Family Practice Residency in Salinas, Calif. Dr. Cutler is a board-certified family physician with more than 20 years of experience. He serves as a medical liaison to alternative and traditional practicing physicians. His practice focuses on an integrative solution to health problems. Dr. Cutler is a sought-after speaker and lecturer on experiencing optimum health through natural medicines and founder and editor of Easy Health Options™ newsletter — a leading health advisory service on natural healing therapies and nutrients.

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